U vs Ring Sizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
U
This app serves as a smart park service cloud platform, showcasing commercial properties and offering online services for businesses. It facilitates convenient site selection and office space, catering to daily operational and living needs within the park.
- Commercial property showcase
- Online business services
- Smart park service platform
- Convenient site selection
- Office space solutions
- Daily operational support
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U-PARK将海尔地产旗下商业产业项目对外展示,提供企业从招商入驻到日常基础办公生活诉求的线上服务。打造智慧园区服务云平台,为园区用户提供智能化应用与服务,便捷选址办公,海尔地产致敬美好生活X.0。
Ring Sizer
Measure your finger or an existing ring accurately on your iPhone. Get your ring size in multiple international systems, including diameter and circumference. No printing or extra tools needed.
- Measure existing rings on screen
- Measure finger without a ring
- US, UK, EU, and JP sizing
- View diameter and circumference
- No printing or extra tools required
- Quick and simple measurement
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Find your ring size right on your iPhone. Measure an existing ring on screen or measure your finger without a ring, then get your diameter, circumference, and ring size in US, UK, EU, and JP sizing systems. No printing, paper size charts, account, or extra tools required. Whether you're buying a ring, choosing a gift, or helping a customer find the right size, you can get the measurements you need in seconds. IDEAL FOR • Finding your ring size before buying jewelry online • Measuring an existing ring that already fits • Measuring your finger when you don't have a ring • Choosing a ring size for a gift, engagement, or wedding • Helping customers compare ring sizes across different sizing systems KEY FEATURES ◆ MEASURE AN EXISTING RING Place a ring on your iPhone screen and adjust the on-screen guide to match its inner edge. Get its diameter, circumference, and corresponding ring size. ◆ NO RING? MEASURE YOUR FINGER Don't have a ring to measure? Use the finger measurement flow to find your size without an existing ring or a printed size chart. ◆ US, UK, EU & JP RING SIZES See your result in US, UK, EU, and JP sizing systems, making it easier to shop from jewelers and stores that use different size standards. ◆ DIAMETER & CIRCUMFERENCE Get more than a ring size. View the measured diameter and circumference to help compare sizes and check jewelry measurements. ◆ NO PRINTING OR EXTRA TOOLS Measure with your iPhone without printing a ring sizer or using a ruler, measuring tape, or other equipment. ◆ QUICK & SIMPLE Open the app, choose how you want to measure, and get your result in seconds. No account or lengthy setup required. FREQUENTLY ASKED QUESTIONS How can I find my ring size with my iPhone? You can measure an existing ring directly on your iPhone screen or use the finger measurement flow if you don't have a ring. Can I measure a ring I already own? Yes. Place a ring that fits you on the screen and adjust the guide to its inner edge to determine its measurements and size. How can I find my ring size without a ring? Use the finger measurement flow. It lets you estimate your ring size without an existing ring or a printed ring sizer. Which ring size systems are supported? The app shows ring sizes in US, UK, EU, and JP systems, along with diameter and circumference. Can I use it when buying a ring as a gift? Yes. If you have access to a ring that fits the person, you can measure it on your iPhone and use the result when comparing ring sizes. Is this useful for jewelers and jewelry sellers? Yes. Jewelers and sellers can use it as a quick way to measure rings and compare sizes across US, UK, EU, and JP sizing systems. SUBSCRIPTION INFORMATION Payment will be charged to your iTunes Account at confirmation of purchase. Your subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. The renewal cost depends on the selected subscription plan. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Support Address: support@getringsize.app Privacy Policy: https://getringsize.app/pp Terms of Use: https://getringsize.app/tou
Screenshots
Verdict
The clearest difference is rating: Ring Sizer at 4.3 against U's 1.0. Ring Sizer also leads on ratings volume (7 vs 1). U's advantage is in-app purchases (none vs 5) and iOS requirement (8.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Ring Sizer sells 5 in-app purchases, starting at $5.99 per 7 days. U asks for nothing beyond the download.
Ring Sizer holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Ring Sizer has 7 ratings behind it against 1, so its average is the more settled of the two.
U ships an update every 2 weeks, Ring Sizer fortnightly. The most recent releases landed on November 2, 2026 and November 10, 2026 respectively.
| Parameter | U | Ring Sizer |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.3 (7 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 7 — better |
| Update frequency | Every 2 weeks — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 43 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Qingdao Huazheng Software Information Technology | Desidari Holding Ltd. |
Customer experience
U
Ring Sizer
In-app purchases
U
No in-app purchases
Ring Sizer
- Ring Sizer Pro - Weekly7 Days trial$5.997 Days
- Ring Sizer Weekly3 Days trial$7.997 Days
- Ring Sizer Monthly$19.991 Month
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- Ring Sizer Annual$24.991 Year
- Ring Sizer Yearly$49.991 Year









